<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">

<script type="text/javascript">
    function reload(){
        parent.location.href=parent.location.href;
    }
</script>

<h1> ${result} </h1><br/>
<button onclick="reload()">返回</button>